Fun Central S2 6 Inch Premium Glow in the Dark Sticks - Pink 25pcs Perfect for glow parties and nighttime activities! Our premium glow sticks measure approximately 6 inches long and they glow for 8-12 hours. Each glow stick comes with a pre-attached hook and lanyard. Activate the glow stick by snapping and shaking it. Intended for 1 time use. Sold by the box (25 glow sticks per box).